Vacuum cleaner attachment



R 7 .mm a m m1 m 1 NA T 3 LU T 5 A 2 5 m@ m B B. s. JABLON VACUUM CLEANER ATTACHMENT Flled May 12, 1947 Patented Nov. 28, 1950 UNITED STATES PATENT OFFICE 5 Claims.

This invention relates to a vacuum cleaner and particularly to an attachment for a vacuum cleaner which will reduce the back pressure caused by the resistance of the air bag, and yet cause the dirt carried by the moving air stream to separate from the air before being exhausted to the room atmosphere, and thus by diminishing the back resistance of the air bag increase the force of the suction to pick up dirt.

One of the objects of the invention is the provision of a vacuum cleaner with an attachable exhaust outlet having means for separating the dirt from the air, so arranged that more rapid discharge of the air stream is permitted.

Another object of the invention is the provision of a construction which will accomplish this object, which can be readily secured to the upper end of the air bag of a vacuum cleaner, and which will permit of ready cleaning of the filtering means enclosed by it.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. l is a side elevation showing a vacuum cleaner having an air bag equipped with the improved exhaust device.

Fig. 2 is a longitudinal sectional view, taken on line 2-2 of Fig. 1, looking in the direction of the arrows.

Fig. 3 is a top end View of the attachment, showing the exhaust openings thereof.

Fig. i is a cross sectional View, taken on line 4-4 of Fig. 2, looking in the direction of the arrows.

Referring to the drawings, which illustrate the practical embodiment of the invention, i designates a motor driven vacuum cleaner having an intake base i i, and a discharge hood I 2, to which the lower end of the air bag it is secured as by the coupling Hi. The vacuum cleaner is equipped with the usual control handle 55, and the upper end of the bag it is supported from this handle by means or the hanger it. These parts are old and well known.

In carrying out the present invention, the upper end of the bag is formed with an open hole, in which an inner metal tube ll is inserted. This tube is formed or provided with an internal end flange IS on. its upper end, which is formed with a central bearing l9, and with circular exhaust holes 20, disposed in a circular row around the bearing 59, and equally spaced from each other.

The upper tubular end 2| of the air bag !3 is snugly fitted around the tube ll, and an outer metal sleeve 22 is then forced over the tubular end 25 and secured by the engaging screw threads 23 to the tube ll, so as to clamp the bag end thereto. The upper end of the sleeve 22 is formed with an internal flange 24, to engage the flange E8 of the tube ll.

In order to lock the tubular upper end of the air bag to the wall of the metal sleeve 22, this sleeve is formed with an internal groove 25, into which the fabric of the air bag is forced by means of the internal spring ring 26.

Within the inner tube H a series of spaced discs 21, of sponge material, or of filter material, are arranged. These discs are formed with a plurality of transverse discharge openings 23, and the openings of one disc are offset with reference to the openings of the adjacent discs. Below these discs a supply of filter material 29, such as fibre glass, is arranged. The filter material and the discs of sponge material are held against the upper internal end flange I 8 by means of the inner disc 39, which engages a seat 3| formed in th inner end of the inner tube H. A rod 32 extends through the inner and lower disc 30, through the filter material 29 and the discs 2'! of sponge material, and through the end wall I8. The lower end of this rod 32 is provided with a head 32 which bears against the inner and lower disc 39 and which extends through th bearing It to receive the clamping nut 33, the turning of which will clamp the lower disc 39 against the inner end of the sleeve ii, and thereby clamp the discs 2'! against the end wall 28, and the filter material against the disc 2?. The inner and lower disc 35 is formed with open discharge ports or holes 36 When the vacuum cleaner i9 is operated in the usual manner, the air stream which is discharged into the bag will flow in part through the porous wall of the bag. and in part through the attachment, passing through the openings of the lower disc 31!, through the filtering material 23 and the perforated discs 2i, and thence through the holes of the end wall 58 to the room atmosphere.

The total resistance offered by the attachment is less than that offered by the wall of the air bag, so that the back pressure developed by the resistance or the air bag to the exhaust flow of the air stream is reduced.

The air discharging through the filtering material and the sponge discs releases dirt which 3 would pass through the wall of the air bag, because of the baffle action set up by the staggered arrangement of the openings 28 of the sponge discs.

By detaching the sleeve 22 the sponge discs and filtering material may be cleaned or replaced. Any disinfecting fiuid may be sprayed or sprinkled in the filtering material, so that the discharging air stream will cause the room in which the vacuum cleaner is operated to be disinfected.

While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

.1. In combination with a vacuum cleaner bag having a discharge opening at the topend thereor, a filter mounted in the discharge opening, comprising an inner sleeve having one end inserted into the discharge opening and formed at its inner end with'a circular seat and having 'its outer end closed by a wall formed with a :central bearingan'd a plurality of exhaust holes arranged in a circle about said central bearing,

means'securing the material or the bag defining the discharge opening about the periphery of said sleeve, a plurality of discs held spaced from one another positioned in said inner sleeve, the outermost of said discs being in facial contact with the-inner face of said wall, said discs having oil- -set openings communicating with the discharge openings of said wall and aligned holes aligned with said central bearing, filter material positioned in said sleeve in contact with the innermost of said spaced discs, an inner disc engaging said circular seat closing the open end of said sleeve and formed with a central hole aligned with the aligned holes of said spaced discs a plurality 'of openings leading from the bag .intolsaid sleeve formed in said inner disc about said central hole, and means engaged through .said central hole of said inner disc, said filter material, said aligned holes of said spaced discs,

and said :central bearing securing said inner means securing the material of the bag defining the discharge opening about the periphery of saidsleeve a pluralit of discs held spaced from one another positioned in said inner sleeve, the outermost of said discs being in facial contact withthe inner face of said wall, said discs having ofiset openings communicating with'the discharge openings of said wall and aligned holes aligned with said central bearing, filter material positioned in said sleeve in contact with the in- "nermost of said spaced discs, an inner disc engaging said circular seat closing the open end of said sleeve and formed with a central hole aligned with the aligned holes of said spaced discs and a pluralityof openings leading from .edly engaged 4 the bag into said sleeve formed in said inner about said central hole, and means engaged through said central hole of said inner disc, said filter material, said aligned holes of said spaced discs, and s central bearing securing said inner disc in position on said circular seat, said securing means comprising an outer metal sleeve threadedly engaged about said inner sleeve and having one end overlapping the material of the bag defining the discharge opening, an annular groove formed on the end of said outer sleeve which overlaps the material of the bag, and a spring ring within the bag holding a portion of material defining the discharge opening pressed into said annular groove.

3. In combination with a vacuum cleaner bag having a discharge opening at the top end thereor", a filter mounted in the discharge opening, comprising an inner sleeve having one end inserted into the discharge opening and formed atits linner end with a circular seat and having its outer endclosed by a wall formed with a central bearing and a plurality of exhaust holes ar-- ranged in a circle about said central bearing, means securing the material of the bag defining discharge opening about the periphery of said sleeve, a plurality of discs held spaced from one another positioned in said inner sleeve, the outermost of said discs being in facial contact with the inner face of said wall, said discs having offset openings communicating with the discharge openings of said wall and aligned holes aligned with said central bearing, filter material positioned in said sleeve in contact with the innermost of said spaced discs, an inner disc engaging said circular seat ciosingthe o en end or said sleeve and formed with a central hole aligned with the aligned holes of said spaced discs and a plurality of openings leading from the bag into said sleeve formed in said inner disc about said central. hole, and means engaged through said central hole of said inner disc, said filter material, said aligned holes 05; said spaced discs, and entral bearing securing said inner disc in position on said circular seat, said securing means comprisl an outer metal sleeve thread ab t said inner sleeve and having one end overlapping the material or" the bag defining the discharge opening, an annular groove formed on the end of said outer sleeve which overlaps the material of the hag, and a spring ring within the bag holding a portion of the material definingthe discharge opening pressed into said annular groove, said outer sleeve being formed at its end opposed to the end formed with said groove with an directed flange which abuts the adjacent end said inner sleeve.

4. In comlination with a vacuum cleaner bag having a discharge opening at the top end thereof, a filter mounted in the discharge opening, comprising an inner sleeve hav'ng one end inserted into the discharge opening and formed at its inner end with a circular seat and havin its outer end closed by a wall formed with a central bearing and a plurality oi exhaust holes arranged in a circle about said central bearing, means securing the material of the bag defining'the discharge opening about the periphery of said sleeve, a plurality of discs held spaced from one another positioned in said inner sleeve, the outermost of said discs being in facial contact with theinner face of said wall, said d scs having offset openings communicating with the discharge openings v.o'f said wall and aligned holes aligned with said central bearing, filter material positionedin said sleeve in contact with the innermost of said spaced discs, an inner disc engaging said circular seat closing the open end of said sleeve and formed with a. central hole aligned with the aligned holes of said spaced discs and a plurality of openings leading from the bag into said sleeve formed in said inner disc about said central hole, and means engaged through said central hole of said inner disc, said filter material, said aligned holes of said spaced discs, and said central bearing securing said inner disc in position on said circular seat, said latter-mentioned means, comprising a rod having a threaded end passed through said central hole of said inner disc, said filter material,

central bearing, and a nut engaged on the threaded end of said rod and abutting said wall.

5. In combination with a vacuum cleaner bag havin a discharge opening at the top end thereof, a filter mounted in the discharge opening, comprising an inner sleeve having one end inserted into the discharge opening and formed at its inner end with a circular seat and having its outer end closed by a wall formed with a central bearing and a plurality of exhaust holes arranged in a circle about said central bearing, means securing the material of the bag defining the discharge opening about the periphery of said sleeve, a plurality of discs held spaced from one another positioned in said inner sleeve, the outermost of said discs being in facial contact with the inner face of said wall, said discs having ofiset openings communicating with the discharge openings of said wall and aligned holes aligned with said central bearing, filter material positioned in said sleeve in contact with the innermost of said spaced discs,

1 central hole aligned with the aligned. holes of said spaced discs and a plurality of openings leading from the bag into said sleeve formed in said inner disc about said central hole, and means engaged through said central hole of said inner disc, said filter material, said aligned holes of said spaced discs, and said central bearing securing said inner disc in position on said circular seat, said latter-mentioned means, comprisin a rod having a threaded end passed through said central hole of said inner disc, said filter matejrial, said aligned holes of said spaced discs and said aligned holes of said spaced discs and said said central bearing, and a nut engaged on the threaded end of said rod and abutting said wall,

and an enlarged head formed on the end of said rod opposed to the threaded end thereof and abutting the adjacent face of said inner disc. as

BERNARD S. J ABLON file of this patent: 25,

UNITED STATES PATENTS Number Name Date 523,815 Krix July 31, 1894 1,230,827 Duflie June 19, 1917 1,802,228 Witte Apr, 21, 1931 1,927,947 Newell .1 Sept. 26, 1933 FOREIGN PATENTS Number Country Date 112,599 Switzerland Nov. 2, 1925 

